futuristic greenish mirror cylindrical westhafen tower, 30-story skyscraper westhafen tower in gutleitviertel district, frankfurt

tower facade frankfurt germany westhafen office futuristic tipped architecture business building pattern angular strive reflex triangle hesse multistorey glass block blue background wall turquoise glasses abstract exterior skyscraper facades transparent corporation financial mosaic real district city window diagonal commercial mirror geometric modern construction estate greenish cylindrical 30-story gutleitviertel